From b0db25a094b2641cc720f770a834404cda98e7b5 Mon Sep 17 00:00:00 2001
From: sunkaixuna <610262374@qq.com>
Date: Sat, 4 Sep 2021 09:26:02 +0800
Subject: [PATCH] Add Sqlfunc.Abs  Sqlfunc.Round

---
 .../ExpressionsToSql/DbMethods/DefaultDbMethod.cs    | 12 ++++++++++++
 .../ExpressionsToSql/DbMethods/IDbMethods.cs         |  2 ++
 .../SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs   |  5 +++++
 .../ResolveItems/MethodCallExpressionResolve.cs      |  4 ++++
 4 files changed, 23 insertions(+)

diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs
index f0ca5b768..d48b243fb 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/DefaultDbMethod.cs
@@ -477,5 +477,17 @@ namespace SqlSugar
             var array = model.Args.Skip(1).Select(it => it.IsMember?it.MemberName:it.MemberValue).ToArray();
              return string.Format("'"+str+ "'", array);
         }
+
+        public string Abs(MethodCallExpressionModel model)
+        {
+            var parameter = model.Args[0];
+            return string.Format(" ABS({0}) ", parameter.MemberName);
+        }
+
+        public string Round(MethodCallExpressionModel model)
+        {
+            var parameter = model.Args[0];
+            return string.Format("  ROUND({0},{1}) ", parameter.MemberName);
+        }
     }
 }
diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/IDbMethods.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/IDbMethods.cs
index 71ff30512..7f05f6432 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/IDbMethods.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/IDbMethods.cs
@@ -73,5 +73,7 @@ namespace SqlSugar
         string Oracle_ToChar(MethodCallExpressionModel model);
         string SqlServer_DateDiff(MethodCallExpressionModel model);
         string Format(MethodCallExpressionModel model);
+        string Abs(MethodCallExpressionModel model);
+        string Round(MethodCallExpressionModel model);
     }
 }
diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs
index 3c5872439..eebb04310 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/DbMethods/SqlFunc.cs
@@ -130,6 +130,11 @@ namespace SqlSugar
         public static TResult GetSelfAndAutoFill<TResult>(TResult value) { throw new NotSupportedException("Can only be used in expressions"); }
         public static DateTime GetDate() { throw new NotSupportedException("Can only be used in expressions"); }
         public static string GetRandom() { throw new NotSupportedException("Can only be used in expressions"); }
+
+
+        public static T Abs<T>( T value) { throw new NotSupportedException("Can only be used in expressions"); }
+        public static string Round<T>(T value,int precision) { throw new NotSupportedException("Can only be used in expressions"); }
+
         /// <summary>
         /// Subquery
         /// </summary>
diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve.cs
index a5b5e8b91..82c90cb03 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve.cs
@@ -789,6 +789,10 @@ namespace SqlSugar
                         var result = this.Context.DbMehtods.Format(model);
                         this.Context.Parameters.RemoveAll(it => model.Args.Select(x=>x.MemberName.ObjToString()).Contains(it.ParameterName) );
                         return result;
+                    case "Abs":
+                        return this.Context.DbMehtods.Abs(model);
+                    case "Round":
+                        return this.Context.DbMehtods.Round(model);
                     default:
                         break;
                 }